CVE-2020-8553: Kubernetes Ingress-Nginx

Medium severity, CVSS 5.9. EPSS: 0.9% chance of exploitation in the next 30 days.

The Kubernetes ingress-nginx component prior to version 0.28.0 allows a user with the ability to create namespaces and to read and create ingress objects to overwrite the password file of another ingress which uses nginx.ingress.kubernetes.io/auth-type: basic and which has a hyphenated namespace or secret name.

Affected products

• Kubernetes Ingress-Nginx: before 0.28.0 (fixed in 0.28.0)

Published 2020-07-29. Last modified 2026-06-17.